Closure cap



Sept. 8, 1942. A. M. .MALLUK 2,294,922

GLOSURE CAP Filed Nov. 14, 1938 2 sheets-sheer 1 INVEN'roR ATTORNEY sans.,v 1942. A. M MALLUK 2,294,922

CLOSURE CAP Filed Nv. 14, 195e '2 Sheets-sheen 2 ATTORNEY Patented Sept. 8, 1942 UNHTED STATES PATENT OFFICE CLOSURE CAP Assad M. Malluk, New York, N. Y.

Application November 14, 1933, Serial No. 240,257

2 Claims.

The object of the invention is to provide a novel closure cap adapted for, but not limited to, the filling or discharge openings of tanks and containers, the device being particularly useful to add to the safety factors of an enclosing lock cap for the protection of said openings.

The invention will be described with reference to the accompanying drawings, in which Figure 1 is a sectional elevation of a form of the invention taken on the line l-LFigure 2,

Figure 2 is a top plan view, partly broken away,

Figure 3 is a bottom plan View of the closure cap per se,

Figure 4 is a reduced horizontal section on the line 4 4, Figure 1, looking in the direction of the arrows,

Figure 5 is a fragmentary view in elevation showing a locking face of the locking cap and lock barrel carried thereby,

Figure 6 is a bottom plan View of the locking cap, showing one of its members swung outwardly,

Figure 7 is a schematic view in elevation, showing a tank, fragmentarily, and the closure and locking caps moved upwardly, both being connected to a chain leading to a stop ring within the neck of the tank.

Figure 8 is a fragmentary plan View showing the barrel receiving end of one locking cap rim member,

Figure 9 is a fragmentary View showing the key receiving end of one locking cap rim member, in elevation,

Figure l0 is a sectional elevation of a modified locking cap, taken on the line lil- 10, Figure 11,

Figure lila is a perspective View of the threaded stud '2d and the chain suspended therefrom.

Figure 11 is a bottom plan View of the structure shown in Figure 10,

Figure l2 is a sectional elevation taken on the line 2--I2, Figure 11,

Figure 13 is a bottom plan view of a further modification of the locking cap, partly in section, on the line Iii-i3, Figure 14,

Figure 14 is a sectional elevation on the line M-Ill, Figure 13,

Figure 15 is a sectional elevation on the line 15-15, Figure 13,

Figure 16 is a horizontal section on the line l-Hi, Figure 14, looking in the direction of the arrows,

Figure 17 is a schematic perspective view showing the lowermost of the relatively rotatable lugcarrying disks and the adjustable lugs therefor,

Figure 18 is a top plan view of a locking cap like that of Figure 10 with Water drainage channels.

The characteristic of my device is the provision of a closure cap in which l(a) the latching lugs are rotatably connected to the cap so that when the latter is associated with a surmounting and surrounding lockingl cap, the danger of transmitting releasing rotation of the latter to the closure cap is avoided; (b) the improvement of adjustable lugs to accommodate tank opening flanges of diiferent sizes; (c) the provision of two sets of lugs relatively movable away from and toward each lother'after the cap is applied to further add to the safety of the device; (d) the formation of the closure cap for association with a chain and latching ring, whereby the closure cap, and also a locking cap, may permamently be associated with a tank or other container, to avoid loss of the cap or caps; (e) structural improvements hereinafter set forth.

Referring to the drawings and Figures 1 to 4, I have indicated at I a tank or other container having, in this instance, an opening surrounded by an upstanding neck 2, which has the usual ring flange 2x, which in practice is formed with appositely related apertures (not shown) to receive the latching lugs of a closure cap.

The primarybody member of the closure cap is shown at 3, its upper wall being formed with a cup-like depression at 3m, which depression is centrally apertured to receive and provide a bearing for the shank of a thumb piece 4, threaded at its lower end into the threaded aperture of a disk 5. Disk 5 carries two locking lugs, the lugs being relatively adjustable. The rst lug, shown at 6 is carried by a plate 6x, having elongated apertures at a to receive screws 1 and a headed stud 8, on which is threaded a nut 9, Figure 3.

The second lug Ill is carried by plate I having an elongated aperture to receive headed stud `I l on which is threaded a nut l2. By loosening the screws 'I and nut 9 plate 6a: may be adjusted longitudinally, and by loosening nut I2 plate ma: may be adjusted longitudinally. This will accommodate the lugs to the openings of lling neck flanges when the latter are of various diameters.

In the use of the device the closure cap is applied to the flanged neck of the container in such manner that the lugs 6 and i0 project downwardly through openings customarily formed in said flange, whereupon thumb piece 4 is rotated to move the closure cap so as to carry the lugs under the wall of the neck flange thus securing the cap firmly in place, by such rotation of the thumb piece not only would the lugs 34 be offset from the lugs 36 but the cap as a whole may be rotated.

A sealing ring |211: of rubber or other suitable material may be employed immediately above the lugs 6 and I0 to bear upon the upper face of the lling neck ring flange.

The locking or protector cap for the closure cap may be of the type shown in my United States- Patent No. 2,131,060 of September 27, 1938, and is so illustrated in the drawings, but somewhat modified as now to be explained.

The protector cap may comprise an upper disklike member I3 having an integral semi-annular wall I4, wall I4 at one end having a locking socket extension |43: and at the opposite end a pin hinge at I5 (Figure 6) to receive a hinged side wall I6 having a locking barrel holding end Ilia: enclosing barrel lock mechanism of any desired type. The lower face of locking cap wall I3 has pivotally connected thereto by headed stud I1 a rotatable spring spider I8 which, when the closure cap is in position immediately contacts with and bears against the top closure cap. This is a safeguard against such frictional engagement of the closure cap with the locking cap as to enable rotation of the former by pressing downwardly upon the locking cap and giving it a rotary movement. In such case the spider fingers will be more or less bound to the locking cap but the closure cap will rotate upon headed -stud I1 as an axis.

In order that disk 5 carrying lugs 6 and I0 may have only a limited movement, I prefer that the openings in the depressed cup-like wall of the closure cap body 3 through which headed studs 8 pass be as shown in Figure 4, i. e., short arcuate openings, the ends of which will stop the studs against any but limited lateral movement.

The broken-away plan view shown in Figure 2 illustrates the relation of the parts when in position. It will be seen that the lower inwardly projected flanges I4x, I 6m of members I4 and I6 carry antifriction rollers I9 adapted to bear upon the lower rim of the closure cap if any attempt is made to move the latter by pulling the locking cap upwardly to secure frictional engagement with the closure cap at the base thereof and thereby, through rotation, removing it from the neck of the container.

As shown in Figures 1 and 7 the thumb piece 4 may be centrally apertured for the passage of a chain 20 connected at its upper end to headed stud I1 and at its lower end to a stop member, which may be formed as a ring, as indicated at 2|.

In Figures tov 12 inclusive, I have shown an arrangement in which the locking lugs 22 are of a form different from that in the preceding figures and in which both the locking lugs and overlying spring fingers 24 are endwise adjustable. Both the locking lugs` and the spring ngers 2F, engage under the flange 2x of the tank neck to hold the closure cap on the neck. In the said modified construction the locking lugs are angularly bent at their ends, the opposed lugs being shown at 22, Figures l1 and 12, and secured to an integral annular extension 23m of the modied form of closure cap 23, the latter being preferably cut with seats to receive the lugs generally in the manner shown in Figure 17. The lugs therefore are movable endwise relatively to the member 23m. The lugs, which have elongated slots in their portions rearwardly of their angularly bent ends are held in place by the underlying shank 24a: of a plate spring member 24 longitudinally slotted to receive a holding screw 25 threaded into member 23:1: and by screws 26 which pass through elongated slots in the shank 21m of a plate spring member 21, the screws also passing through the elongated slots in the lugs. W'hen screws 25 and 2S are loosened, both the spring members and the lugs may be lengthwise adjusted to accommodate container neck flanges of different diameters with different spacings between their lug-receiving openings. If desired, cap 23 may carry supplementary spring fingers or ring 28 above the fingers 24 as shown in Figure 10. Member 23x may be centrally apertured and threaded to receive a chain holding threaded stud 29 to carry the wire (or chain) 39, more particularly shown in Figure 10a. The center of cap 23 may be depressed to receive the head of stud 29 and in such case any water which may pass into the depression will flow outwardly through channels at 29x, Figure 18.

In the construction of Figures 13 to 1'7 inclusive, two sets of lugs are provided which, when the cap is applied to the flange neck of the container enter ange openings therein which may be somewhat wider than ordinary, and then the cap may be turned and the lugs relatively moved so that even if the cap has moved to inwardly applying position through abnormal friction interposed between the closure and over-all locking caps, the unauthorized removal of the closure cap Will be prevented and the closure cap may only be operated for removal by release therefrom of the closure cap and the relative rotation to initial position of the lugs.

For the purpose referred to above, the closure cap of Figures 13 t0 1'1 has the general formation of that shown in Figure 1 and bears like numeral designations. Keyed to the shank of the thumb piece 4 is a rotary disk 3| having arcuate apertures at 3Ia: to receive the screws 32 which are threaded in the depressed wall of cap 3 and which pass through a disk 33 xed relatively to the cap. Disk 33 is cut away at opposite points to receive lugs 34 having elongated apertures to receive holding screws 35 (Figure 13). Likewise, disk 3| is cut away to receive the lugs 36, the latter having elongated apertures to receive the holding screws 31. By loosening the screws the lugs of either disk may be adjusted to accommodate the various sizes of container neck flanges. At its lower end the shank of the thumb piece is threaded to receive a holding nut 38 as shown in Figures 14 and 15. As shown in Figures 14 and l5, the cap may carry a sealing ring 39 above disk 3I to engage the upper face of the ange neck of the container, the underface of which is to be engaged by the lugs.

When the cap just described is applied to a lling cap, the lugs 34, 36 will be passed through the usual lug-receiving apertures of the lling neck ring flange and the cap may be given a rotation to carry the lugs under the flange, whereupon thumb piece 4 may be rotated to spread the legs away from each other to provide the safety factor desired.

In Figures 8 and 9 I have shown a shield for the key opening Im, the shield being shown at 40 being engaged at one end by springs 4I in a recess formed in member Ix, the walls of the recess forming a guide for the movement of the shield. In Figure '7 the shield is split, forming two halves held in normally mutual Contact by springs indicated at 42.

It will be understood that the closure cap is adapted for tanks and containers in general, including fuel tanks, barrels and drums, wine and liquor containers, and is also adapted as a locking cap for general purposes.

Having described my invention, what I claim and desire to secure by Letters Patent, is as follows:

1. A closure cap comprising a body member formed with a cuplike depression, a carrying member mounted for rotational movement below the cap, a thumb piece disposed in said cuplike depression and having a rotatable shank secured to said carrying member, a set of latching lugs endwise movable in slots formed in the carrying member, and having elongated apertures, set screws passing through the elongated aper tures and into the carrying means fgr clamping the latching lugs in adjusted position, and a second set of lugs on said body member, whereby rotation of the thumb piece will bodily swing the rst named set of lugs relatively to the second set of lugs.

2. A closure cap adapted for closing the ller opening of a tank of that type in which the opening is provided with an inwardly directed flange formed with clearance passageway for lugs carried by the cap, said closure cap comprising a body member formed at its top with a depending cuplike depression, a rotatable plate disposed below the cuplike depression, a thumb piece having a shank passing through an opening in the lower wall of the cuplike depression and secured to the plate for rotation thereof, lugs mounted on the underside of said plate and extending radially with respect to the axis thereof, means adapted to limit the degree of rotation of the plate, and yielding pressure means carried by the assembly below the cuplike depression and above said lugs and adapted, when the cup is applied to the ller opening, to hold the lugs yieldingly against the underface of the ller opening flange.

ASSAD M. MALLUK. 

